63% (2002)

79% (2004)

65% (2013)

56% (2008)

77% (1971)

70% (1973)

66% (2000)

75% (1986)

63% (2018)

51% (2009)

71% (2006)

65% (2005)

68% (1988)

64% (2004)

49% (1996)

71% (1985)

68% (1976)

64% (1998)

70% (1995)

69% (2017)